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Re: Breakage on trunk?

From: John Beranek <john_at_redux.org.uk>
Date: Sat, 05 Mar 2011 00:16:31 +0000

On 04/03/2011 23:02, Stefan Fuhrmann wrote:
> On 04.03.2011 12:32, John Beranek wrote:
>> On 04/03/11 11:18, Philip Martin wrote:
>>> John Beranek<john_at_redux.org.uk> writes:
>>>
>>>> Oh, this is for a run of an installed copy of svnserve, as I don't
>>>> have a:
>>>>
>>>> subversion/tests/libsvn_client/.libs/lt-client-test
>>>>
>>>> only:
>>>>
>>>> subversion/tests/libsvn_client/client-test
>>>> [A wrapper script I can't run with gdb]
>>>>
>>>> subversion/tests/libsvn_client/.libs/client-test
>>>> [An executable that doesn't find its libraries]
>>> Building creates the libtool wrapper scipt client-test and the
>>> executable .libs/client-tests. The executable is one that will be
>>> installed and is linked to libraries in the install path.
>>>
>>> If you run the libtool wrapper script it creates a second, temporary
>>> executable .libs/lt-client-test. This is linked to libraries in the
>>> build directory. This is one you debug.
>> Oh, I _see_. :)
>>
>> #0 0x0000003786c330c5 in raise () from /lib64/libc.so.6
>> #1 0x0000003786c34a76 in abort () from /lib64/libc.so.6
>> #2 0x0000003786c2b905 in __assert_fail () from /lib64/libc.so.6
>> #3 0x00007ffff5b88d0b in svn_temp_deserializer__resolve (
>> buffer=<value optimized out>, ptr=<value optimized out>)
>> at subversion/libsvn_subr/svn_temp_serializer.c:282
>> #4 0x00007ffff6403606 in svn_fs_fs__id_deserialize (
>> buffer=<value optimized out>, id=0x7912b0)
>> at subversion/libsvn_fs_fs/id.c:387
>> #5 0x00007ffff63f4743 in svn_fs_fs__dag_deserialize (out=0x7fffffffd750,
>> data=0x7912a8 "", data_len=<value optimized out>,
>> pool=<value optimized out>) at subversion/libsvn_fs_fs/dag.c:1111
> This is the first call to any de-serializer function
> right after the raw data has been read cache.
>
> So, there is a chance that the data either got
> corrupted by the cache itself or was garbage
> even before that. Therefore, I added extensive
> consistency checks in r1078185 to be able to
> rule out the cache code itself.
>
> Please rebuild with -DDEBUG_CACHE_MEMBUFFER
> and retry.

Hmm, appears unchanged with this extra checking/debugging...

John.

-- 
John Beranek                         To generalise is to be an idiot.
http://redux.org.uk/                                 -- William Blake
Received on 2011-03-05 01:17:07 CET

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